Step-sister's smelly pantyhose, boots and feet fantasy

Jack and Megan and Jack is crazy about his stepsister's feet, especially smelly feet in worn pantyhose. When Megan has those, Jack is just out of control! He can't help himself. But Megan is really disgusted of it and tired of him constantly trying to smell her feet. She thinks he's a total perv. Right now they are both sitting on the sofa in their parent's house living room and Megan is wearing high heeled boots and she has pantyhose. Old, worn and surely stinky pantyhose. Jack of course can't resist and he keeps asking whether she has old pantyhose, smelly ones etc. Megan is really tired of him but Jack is relentless. He keeps asking about them all the time. He's not sure whether it is worth it though to go any further because his stepsister can be pretty mean and he's afraid she would call their stepmom and tell on him. On the other hand if Megan would enjoy let's say a foot massage, he could have her feet and that would be awesome!